Dual adaptive structure for speech enhancement

a speech enhancement and adaptive structure technology, applied in the direction of transducer casings/cabinets/supports, electrical transducers, instruments, etc., can solve the problems of consuming more bandwidth or network capacity than is necessary, using signals from one, and communication degrades, so as to achieve the effect of easy hearing and determination
US7817808B2Inactive Publication Date: 2010-10-19NOISE FREE WIRELESS
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
NOISE FREE WIRELESS
Publication Date
2010-10-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A clear, high quality voice signal with a high signal-to-noise ratio is achieved by use of an adaptive noise reduction scheme with two microphones in close proximity. The method includes the use of two omini directional microphones in a highly directional mode, and then applying an adaptive noise cancellation algorithm to reduce the noise.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit and priority date of U.S. provisional patent application No. 60 / 950,813 entitled “Dual Adaptive Structure for Speech Enhancement” filed on Jul. 19, 2007.BACKGROUND

[0002] 1. Field of the Invention

[0003] The present invention relates to means and methods of providing clear, high quality voice transmission signals with a high signal-to-noise ratio, in voice communication systems, devices, telephones, and other systems More specifically, the invention relates to systems, devices, and methods that automate control in order to correct for variable environment noise levels and reduce or cancel environmental noise prior to sending a voice communication over cellular telephone communication links.

[0004] 2. Background of the Invention

[0005] Voice communication devices such as cell phones, wireless phones and devices other than cell phones have become ubiquitous; they show up in almost every environment. These systems ...

Claims

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